import sys

def sum(a,b):
    return a+b

while True:
    try:
        a,b=raw_input("").split()
    except ValueError,e:
        print "%s" %(e)
        sys.exit(1)
    except EOFError:
        print "eof end"
        break

    if (a.isdigit() == False or b.isdigit() == False):
        print "param a %s,b %s\n" % (a,b)
    else:
        if (1<=int(a)<=100 and 1<=int(b) <=100):
            print "%s" %(sum(int(a), int(b)))
        else:
            print "yuejie"
